“I feel the school has done so well over the years. It’s not just a school for the children, it’s their second home. They enjoy going to school every day and when you go in you feel that vibe of happiness.

“We live in East Acton but I chose to take my kids all the way to Sulivan in Fulham because it’s a great school.

“My youngest son Andrew, who is in year three, will not be staying when the schools merge.”

The council has defended the closure saying it is a necessity to tackle the number of free spaces at both primary schools and has promised to invest £2 million to refurbish New King’s by September 2015.

Councillors have always insisted that the proposals to close down Sulivan had nothing to do with the free school.

Andy Slaughter, Labour MP for Hammersmith, showed his support at the protest.

“Sulivan has brought the campaign to David Cameron’s front door because of the appalling way they’ve been treated by Hammersmith and Fulham Council,” he said.

“This wonderful demonstration today shows how full of life and how wonderful Sulivan Primary is and how it must be saved.

“We hope the government will listen and rein in this out-of-control council.

“These plans are about nothing more than closing down a good community school so that the Tories can hand a valuable piece of land to build a free school.”

Nick Raynsford, former MP for Fulham, said: “All my three children went to Sulivan which is why I raised the issue in the House of Commons before Christmas, even though it’s not my current constituency.

“It seems to me totally wrong to close the school. This is a really good school that has for a long period of time been delivering really high quality education in Fulham and is being closed for no good reason.”

Paul Kennedy, chairman of H&F Liberal Democrats, said: “I’m very proud of the school and their continuing enthusiasm in the face of the council’s determination to close them down. It’s such a fundamental issue of right and wrong.”

Christine Blower, general secretary of the National Union of Teachers, who lives in Hammersmith and previously worked at Sulivan, commented: “From a local perspective, it seems illogical that my local council talks about schools of choice and then is closing a school which is clearly a school of choice.

“If David Cameron came outside and looked at the crowd, he would see a thriving, mixed community. This is clearly a school which is doing brilliant work in the community and with the community.”